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See Product Specifications
| Part Number: | ATTINY426-MFR | 
| Category: | Integrated Circuits (ICs) | 
| Subcategory: | Embedded - Microcontrollers | 
| Manufacturer: | Microchip Technology | 
| Packaging: | Tape & Reel (TR) | 
| Product Status: | Active | 
| Core Processor: | AVR | 
| Core Size: | 8-Bit | 
| Speed: | 20MHz | 
| Connectivity: | I²C, SPI, UART/USART | 
| Peripherals: | Brown-out Detect/Reset, POR, PWM, WDT | 
| Number of I/O: | 18 | 
| Program Memory Size: | 4KB (4K x 8) | 
| Program Memory Type: | FLASH | 
| EEPROM Size: | 128 x 8 | 
| RAM Size: | 512 x 8 | 
| Voltage - Supply (Vcc/Vdd): | 1.8V ~ 5.5V | 
| Data Converters: | A/D 15x12b | 
| Oscillator Type: | Internal | 
| Operating Temperature: | -40°C ~ 125°C (TA) | 
| Mounting Type: | Surface Mount | 
| Package / Case: | 20-VFQFN Exposed Pad | 
| Supplier Device Package: | 20-VQFN (3x3) |